We use g-5's, watch out, the male end of the
pdq ones are actually check valves in each nozzle. You can disassemble them and clean them so they spin again though if thats your problem. And you have to make sure if you replace them with anything aftermarket it has the same specs. Otherwise you will be changing pump pressures etc.... i know the g-5 uses 2 different h.p. Nozzles on the arch. Flow rates and spray patterns also need to be the same.
I wish
pdq would fix the arch not reaching across the middle of the car. On taller vehicles it always seems to leave the skunk strip of
soap down the center, its like the arch needs to be one more nozzle wide.